草地网球 lawn tennis 发球区 service court 处于执牛耳的地位 occupy a leading position 体育道德精神 sportsmanship 以全体运动员的名义 in the name of all the athletes 借助不正当的手段 resort to unjust means草地网球lawn tennis 发球区service court 处于执牛耳的地位occupy a leading position 体育道德精神sportsmanship 以全体运动员的名义in the name of all the athletes 借助不正当的手段resort to unjust means